2897897 has 2 divisors, whose sum is σ = 2897898. Its totient is φ = 2897896.

The previous prime is 2897893. The next prime is 2897933. The reversal of 2897897 is 7987982.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2859481 + 38416 = 1691^2 + 196^2 .

It is a cyclic number.

It is not a de Polignac number, because 2897897 - 2² = 2897893 is a prime.

It is not a weakly prime, because it can be changed into another prime (2897893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1448948 + 1448949.

It is an arithmetic number, because the mean of its divisors is an integer number (1448949).

2^2897897 is an apocalyptic number.

It is an amenable number.

2897897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2897897 is an equidigital number, since it uses as much as digits as its factorization.

2897897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 50.

The square root of 2897897 is about 1702.3210625496. The cubic root of 2897897 is about 142.5698354734.

The spelling of 2897897 in words is "two million, eight hundred ninety-seven thousand, eight hundred ninety-seven".